Maintenance as a service covers every aspect of the building environment particularly the building assets and infrastructural facilities, such facilities spread across projects in several sectors of the national economy which includes agriculture, health, education, commerce, industry, energy, environment and defense. The spread also extends t\o social sectors such as roads, water supply, housing, electricity, and telecommunication. It is noteworthy that such projects have implications for regular maintenance for sustainability.
Maintenance has been a neglected field of technology in Nigeria (Amobi C.O. 2006); yet every infrastructure or equipment requires being maintained to remain in functionality and in up-to-date standard. Buildings and infrastructures are the nation’s most valuable assets, providing people with shelter and facilities for work and leisure. Maintenance starts the day the contractor leaves the site, having completed the project. The design, material specification, construction including workmanship, function and use will determine the amount of maintenance required during the life time of the building or infrastructure.